Home / 6,818.16-9,408.20-3,984.98

Finding the Fourth Proportional to 6,818.16, 9,408.20 and 3,984.98

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Solution

The fourth proportional to 6,818.16, 9,408.20 and 3,984.98 is: 5,498.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,818.16 : 9,408.20 = 3,984.98 : x
  2. Step 2: Convert to fraction form
    6,818.16/9,408.20 = 3,984.98/x
  3. Step 3: Cross multiply
    6,818.16x = 9,408.20 × 3,984.98
  4. Step 4: Simplify right side
    6,818.16x = 37,491,421.87
  5. Step 5: Solve for x
    x = 37,491,421.87/6,818.16
  6. Step 6: Final answer
    x = 5,498.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.